On
March 8, 2006, Kerr-McGee Corporation announced that a record date
of
March 20, 2006, and a distribution date of March 30, 2006, had been
set
for the spinoff of Tronox Incorporated, its majority-owned subsidiary.
To
complete the spinoff, participants in Kerr-McGee’s Savings Investment Plan
(SIP) will be unable to make exchanges, take loans, make withdrawals
and
receive distributions from the portion of their SIP account that
is
invested in Kerr-McGee shares beginning on March 29, 2006. The suspension
under the SIP is expected to end on April 10, 2006. A notice
to
directors and executive officers of a general trading suspension
during
the same period, dated March 9, 2006, is attached hereto as Exhibit
99.1.

Item
9.01

Financial
Statements and Exhibits

(c)
Exhibits

99.1
Regulation BTR Trading Blackout
notice

SIGNATURES

Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant
has duly caused this report to be signed on its behalf by the undersigned
hereunto duly authorized.